/* The Magic Lab — focus reading for lessons. See assets/focus-reading.js.
   Colours come from the page's own variables, so light mode follows the
   page the same way it does everywhere else. */

.ml-focus-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; margin: 0 0 24px;
}

.ml-focus-toggle {
  font: inherit; font-size: 13px; font-weight: 600; line-height: 1;
  padding: 8px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  background: transparent; color: var(--muted, #8b93a1);
}
.ml-focus-toggle[aria-pressed="true"] { color: var(--text, #e3e8ef); border-color: currentColor; }

.ml-focus-nav {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
  font-size: 13px; color: var(--muted, #8b93a1);
}
.ml-focus-nav[hidden] { display: none; }
.ml-focus-nav button {
  font: inherit; font-size: 13px; font-weight: 600;
  padding: 6px 2px; border: 0; background: none; cursor: pointer;
  color: var(--text, #e3e8ef);
}
.ml-focus-nav button:disabled { opacity: 0.35; cursor: default; }

.ml-focus-toggle:focus-visible,
.ml-focus-nav button:focus-visible {
  outline: 2px solid var(--blue, #60a5fa); outline-offset: 3px; border-radius: 4px;
}

/* While the view is on, sections are set apart by a hairline and breathing
   room, so the segments are visible as units rather than as a wall of text. */
.ml-focus-on .ml-focus-seg { padding-block: 28px; border-top: 1px solid var(--border, rgba(255,255,255,0.075)); }
.ml-focus-on .ml-focus-seg:first-child { border-top: 0; padding-top: 0; }

.ml-focus-seg { transition: filter 0.5s ease, opacity 0.5s ease; }
.ml-focus-on .ml-focus-seg.is-blurred { filter: blur(6px); opacity: 0.4; cursor: pointer; }
.ml-focus-on .ml-focus-seg.is-blurred:hover { opacity: 0.6; }
.ml-focus-on .ml-focus-seg.is-current { filter: none; opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .ml-focus-seg { transition: none; }
}

/* "Still want this?" prompt, shown above the lesson when it is due. */
.ml-focus-ask {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px;
  margin: 0 0 16px; padding: 12px 14px; border-radius: 12px;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  font-size: 14px; color: var(--text-2, var(--text, #e3e8ef));
}
.ml-focus-ask span { flex: 1 1 220px; }

/* Introduction dialog. */
.ml-focus-modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  background: rgba(0,0,0,0.55);
}
.ml-focus-card {
  width: min(460px, 100%); max-height: calc(100vh - 40px); overflow: auto;
  padding: 28px; border-radius: 16px; box-sizing: border-box;
  background: var(--bg, #111418); color: var(--text, #e3e8ef);
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.85);
  font-family: inherit;
}
.ml-focus-card .ml-focus-title {
  font-size: 20px; font-weight: 700; line-height: 1.25; letter-spacing: -0.01em;
  margin: 0 0 10px; color: var(--text, #e3e8ef);
}
.ml-focus-card p {
  margin: 0 0 16px; font-size: 15px; line-height: 1.6; color: var(--text-2, var(--muted, #8b93a1));
}
.ml-focus-card p.ml-focus-note { margin: 14px 0 0; font-size: 13px; color: var(--muted, #8b93a1); }

.ml-focus-demo {
  display: flex; flex-direction: column; gap: 12px; margin: 0 0 16px;
  padding: 16px 18px; border-radius: 12px;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
}
.ml-focus-demo .ml-focus-demo-seg {
  margin: 0; font-size: 15px; line-height: 1.5; color: var(--text, #e3e8ef);
  transition: filter 0.5s ease, opacity 0.5s ease;
}
.ml-focus-demo .ml-focus-demo-seg.is-blurred { filter: blur(4px); opacity: 0.4; }

.ml-focus-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; margin-top: 8px; }
.ml-focus-actions button,
.ml-focus-ask button {
  font: inherit; font-size: 14px; font-weight: 600; line-height: 1;
  padding: 10px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  background: transparent; color: var(--text, #e3e8ef);
}
.ml-focus-actions .ml-focus-primary { background: var(--text, #e3e8ef); color: var(--bg, #08090b); border-color: var(--text, #e3e8ef); }
.ml-focus-modal button:focus-visible,
.ml-focus-ask button:focus-visible {
  outline: 2px solid var(--blue, #60a5fa); outline-offset: 3px;
}

@media print {
  .ml-focus-bar, .ml-focus-ask, .ml-focus-modal { display: none; }
  .ml-focus-on .ml-focus-seg { filter: none !important; opacity: 1 !important; }
}